... material makes good hardness and toughness,high efficiency and durability.SpecificationGood quality and high hardness;Reputable supplier and manufacture;Competitive ... F14 98.71% 0.11% 0.21% F80 98.51% 0.15% 0.18% F180 98.48% 0.16% 0.17%Size AvailableF12- ... F1200,P12-P2500;0-1mm,1-3mm ... T/T, L/C, D/A,D/P; High quality black silicon carbide